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INSTALLATION
3G-GPRS-EDGE router IPL-G12
User manual ref. 9017009-02
Page 21
5 RS232 interface
The IPL-G12 router provides an RS232 and an RS485 interface.
Asynchronous products can thus be integrated to the IP network.
The RS232 cable must not be longer than 10 meters.
6 RS485 interface
The RS485 serial interface is
provided on the bottom on a 2 pins
screw-block.
Polarisation resistors
1 Kohm bus polarisation resistors
are included inside the product.
-
1K
1K
+
SW1
B(+)
A(-)
RS485
RS485 line adaptation
For a several meters long connection over the RS485 local interface, it is
not necessary to adapt the RS485 line. For a longer distance, connect a
120 Ohm resistor at each end of the line.